Hi all,Ive been towed around my local River.and I havnt been able to Yak em yet.they are crafty,swim under the kayak and either bust my rig or get to the deep weed whilst Im trying to control rod and paddle and stay upright.The power that they possess is second to none that Ive ever come across.Its deep water for that stretch of the river.about 30ft. River Carp? Pavlopaul England.